BR112015005763A2 - método e aparelho para compensar variações de iluminação em uma sequência de imagens - Google Patents
método e aparelho para compensar variações de iluminação em uma sequência de imagensInfo
- Publication number
- BR112015005763A2 BR112015005763A2 BR112015005763A BR112015005763A BR112015005763A2 BR 112015005763 A2 BR112015005763 A2 BR 112015005763A2 BR 112015005763 A BR112015005763 A BR 112015005763A BR 112015005763 A BR112015005763 A BR 112015005763A BR 112015005763 A2 BR112015005763 A2 BR 112015005763A2
- Authority
- BR
- Brazil
- Prior art keywords
- variations
- compensating
- sequence
- lighting
- images
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 5
- 238000009826 distribution Methods 0.000 abstract 2
- 238000005286 illumination Methods 0.000 abstract 2
- 238000013507 mapping Methods 0.000 abstract 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
- G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/40—Image enhancement or restoration using histogram techniques
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/117—Filters, e.g. for pre-processing or post-processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
- H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
- H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
resumo "método e aparelho para compensar variações de iluminação em uma sequência de imagens". de modo a considerar as variações da iluminação local em uma cena, a invenção propõe um método para a compensação das variações de iluminação, no qual as distribuições são determinadas para cada bloco de uma imagem (ou visualização) e, de modo a evitar a perda da eficiência da codificação do vídeo, uma função de mapeamento com base na distribuição é calculada automaticamente por um aparelho remoto, tal como um decodificador, a partir somente da informação disponível nesse aparelho quando decodificando um bloco atual da sequência de imagens. a presente invenção se refere também a um método e dispositivo de codificação e/ou decodificação de uma sequência de imagens que compreende mecanismo configurado para implementar o método de compensação das variações de iluminação de acordo com a invenção.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12306132.7A EP2733933A1 (en) | 2012-09-19 | 2012-09-19 | Method and apparatus of compensating illumination variations in a sequence of images |
PCT/EP2013/067719 WO2014044504A1 (en) | 2012-09-19 | 2013-08-27 | Method and apparatus for compensating illumination variations in a sequence of images |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112015005763A2 true BR112015005763A2 (pt) | 2017-07-04 |
Family
ID=47008436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015005763A BR112015005763A2 (pt) | 2012-09-19 | 2013-08-27 | método e aparelho para compensar variações de iluminação em uma sequência de imagens |
Country Status (7)
Country | Link |
---|---|
US (1) | US9870606B2 (pt) |
EP (2) | EP2733933A1 (pt) |
JP (1) | JP6640559B2 (pt) |
KR (1) | KR102136905B1 (pt) |
CN (1) | CN104641636B (pt) |
BR (1) | BR112015005763A2 (pt) |
WO (1) | WO2014044504A1 (pt) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9691140B2 (en) * | 2014-10-31 | 2017-06-27 | Intel Corporation | Global matching of multiple images |
WO2017219962A1 (en) * | 2016-06-21 | 2017-12-28 | Zhejiang Dahua Technology Co., Ltd. | Systems and methods for image processing |
US10192295B2 (en) * | 2016-11-09 | 2019-01-29 | AI Analysis, Inc. | Methods and systems for normalizing images |
KR20180074000A (ko) * | 2016-12-23 | 2018-07-03 | 삼성전자주식회사 | 비디오 디코딩 방법, 이를 수행하는 비디오 디코더, 비디오 인코딩 방법, 및 이를 수행하는 비디오 인코더 |
FR3075540A1 (fr) * | 2017-12-15 | 2019-06-21 | Orange | Procedes et dispositifs de codage et de decodage d'une sequence video multi-vues representative d'une video omnidirectionnelle. |
EP3518543A1 (en) | 2018-01-26 | 2019-07-31 | Thomson Licensing | Illumination compensation flag in frame rate up-conversion with template matching |
KR102012318B1 (ko) * | 2018-04-30 | 2019-08-20 | 재단법인 경북아이티융합 산업기술원 | 영상센서를 이용한 용접 품질 전수 검사 장치 및 그 방법 |
US10997947B2 (en) | 2018-05-29 | 2021-05-04 | Samsung Electronics Co., Ltd. | Electronic device and control method thereof |
TW202046180A (zh) * | 2019-04-23 | 2020-12-16 | 美商內數位Vc控股公司 | 用於編碼及解碼深度神經網路之低等級及基於位移等級層之架構 |
EP4057216A1 (en) * | 2021-03-08 | 2022-09-14 | Koninklijke Philips N.V. | Method and system for correcting contrast-enhanced images |
WO2022189240A1 (en) * | 2021-03-08 | 2022-09-15 | Koninklijke Philips N.V. | Method and system for correcting contrast-enhanced images |
CN117201798B (zh) * | 2023-11-06 | 2024-03-15 | 深圳市翔洲宏科技有限公司 | 一种远程视频监控摄像头信息传输方法及系统 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3123587B2 (ja) * | 1994-03-09 | 2001-01-15 | 日本電信電話株式会社 | 背景差分による動物体領域抽出方法 |
US6266370B1 (en) | 1996-09-03 | 2001-07-24 | Nippon Telegraph And Telephone Corporation | Brightness-variation compensation method and coding/decoding apparatus for moving pictures |
KR100746318B1 (ko) | 2002-01-18 | 2007-08-03 | 가부시끼가이샤 도시바 | 동화상 부호화방법 및 장치와 동화상 복호화방법 및 장치 |
KR100992044B1 (ko) | 2003-01-07 | 2010-11-05 | 톰슨 라이센싱 | 매크로블록 파티션의 혼합된 인터/인트라 비디오 코딩 방법 |
CN101023673B (zh) | 2004-09-16 | 2011-06-08 | 汤姆逊许可证公司 | 具有利用局部亮度变化的加权预测的视频编解码器 |
KR20070083168A (ko) | 2006-02-20 | 2007-08-23 | 광운대학교 산학협력단 | 마크로 블록 기반 가중치 예측 기반 멀티 뷰 비디오 부호화및 복호화 장치 및 그 방법 |
KR100794909B1 (ko) | 2006-06-08 | 2008-01-14 | 경희대학교 산학협력단 | 콘트라스트 보정에 의한 이미지 정보 변이의 보상 방법 및이를 이용한 다시점 영상의 부호화/복호화 방법 및 장치 |
KR101460362B1 (ko) | 2007-06-25 | 2014-11-14 | 삼성전자주식회사 | 다시점 비디오 코딩에서 휘도 보상 방법 및 장치 |
EP2177036A2 (en) * | 2007-08-15 | 2010-04-21 | Thomson Licensing | Methods and apparatus for motion skip mode in multi-view coded video using regional disparity vectors |
EP2355037A1 (en) * | 2009-12-18 | 2011-08-10 | Nxp B.V. | Method of and system for determining an average colour value for pixels |
KR101113483B1 (ko) * | 2010-04-09 | 2012-03-06 | 동아대학교 산학협력단 | 컬러 영상의 가시성 향상 장치 및 방법 |
KR101535784B1 (ko) * | 2010-09-03 | 2015-07-10 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 비디오 코딩 및 프로세싱을 위한 조도 보상 및 변환을 위한 방법 및 시스템 |
FR2966681A1 (fr) * | 2011-05-26 | 2012-04-27 | Thomson Licensing | Procede de codage d'une tranche d'image |
CA2878160C (en) * | 2012-07-11 | 2017-06-20 | Lg Electronics Inc. | Method and apparatus for processing video signal |
US9681026B2 (en) * | 2013-04-15 | 2017-06-13 | Htc Corporation | System and method for lens shading compensation |
-
2012
- 2012-09-19 EP EP12306132.7A patent/EP2733933A1/en not_active Withdrawn
-
2013
- 2013-08-27 WO PCT/EP2013/067719 patent/WO2014044504A1/en active Application Filing
- 2013-08-27 JP JP2015531513A patent/JP6640559B2/ja active Active
- 2013-08-27 US US14/429,033 patent/US9870606B2/en active Active
- 2013-08-27 EP EP13770846.7A patent/EP2898682A1/en not_active Withdrawn
- 2013-08-27 CN CN201380048808.0A patent/CN104641636B/zh active Active
- 2013-08-27 BR BR112015005763A patent/BR112015005763A2/pt not_active Application Discontinuation
- 2013-08-27 KR KR1020157006896A patent/KR102136905B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
JP2015532061A (ja) | 2015-11-05 |
EP2733933A1 (en) | 2014-05-21 |
JP6640559B2 (ja) | 2020-02-05 |
KR20150084767A (ko) | 2015-07-22 |
CN104641636A (zh) | 2015-05-20 |
EP2898682A1 (en) | 2015-07-29 |
CN104641636B (zh) | 2018-04-10 |
WO2014044504A1 (en) | 2014-03-27 |
US9870606B2 (en) | 2018-01-16 |
US20150248746A1 (en) | 2015-09-03 |
KR102136905B1 (ko) | 2020-07-22 |
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Legal Events
Date | Code | Title | Description |
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B15K | Others concerning applications: alteration of classification |
Ipc: H04N 7/00 (2011.01) |
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B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
B25G | Requested change of headquarter approved |
Owner name: THOMSON LICENSING (FR) |
|
B25A | Requested transfer of rights approved |
Owner name: INTERDIGITAL VC HOLDINGS, INC. (US) |
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B15K | Others concerning applications: alteration of classification |
Free format text: A CLASSIFICACAO ANTERIOR ERA: H04N 7/00 Ipc: H04N 19/117 (2014.01), H04N 19/139 (2014.01), H04N |
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B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
B11B | Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements |